I just realized that the Kuja are the MOST overpowered army in the OP Verse. Every single member has Armament Haki which is just...Mind Blowing. Like, why did it take so long for us to find out about Haki if there is an entire army of Haki users? Why haven't they conquered more islands? And WHY was Momonga such a problem, when 10 Kuja Warriors could probably wipe his whole fleet? Also, I assume most kingdoms have at least one or two armament users, why dont they just train the whole army with it? It's not like Conqueror's Haki, where not everyone can use it. Everyone can learn Armament Haki, so why don't they?